Being cast as a background actor could be a onetime lark or a full-time gig.
How to do it: Central Casting in Burbank has been placing nobodies in crowd scenes since the silent era. After enduring a three-hour orientation, you’ll fill out a form, get your picture taken (act natural), then wait weeks, maybe months, maybe for-ever, to be hired as “Body No. 2” on the next CSI spin-off. The payoff? Forty bucks for a day’s work and IMDb cred.